/*
 * Catroid: An on-device visual programming system for Android devices
 * Copyright (C) 2010-2016 The Catrobat Team
 * (<http://developer.catrobat.org/credits>)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * An additional term exception under section 7 of the GNU Affero
 * General Public License, version 3, is available at
 * http://developer.catrobat.org/license_additional_term
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.catrobat.catroid.formulaeditor;

import android.util.Log;

public enum Operators {
	LOGICAL_AND(2, true), LOGICAL_OR(1, true), EQUAL(3, true), NOT_EQUAL(4, true), SMALLER_OR_EQUAL(4, true),
	GREATER_OR_EQUAL(4, true), SMALLER_THAN(4, true), GREATER_THAN(4, true), PLUS(5), MINUS(5), MULT(6), DIVIDE(6),
	MOD(6), POW(7), LOGICAL_NOT(4, true);

	private static final String TAG = Operators.class.getSimpleName();

	private final int priority;
	public final boolean isLogicalOperator;

	Operators(int priority) {
		this.priority = priority;
		isLogicalOperator = false;
	}

	Operators(int priority, boolean isLogical) {
		this.priority = priority;
		isLogicalOperator = isLogical;
	}

	public int compareOperatorTo(Operators operator) {
		int returnValue = 0;
		if (priority > operator.priority) {
			returnValue = 1;
		} else if (priority == operator.priority) {
			returnValue = 0;
		} else if (priority < operator.priority) {
			returnValue = -1;
		}

		return returnValue;
	}

	public static Operators getOperatorByValue(String value) {
		try {
			return valueOf(value);
		} catch (IllegalArgumentException illegalArgumentException) {
			Log.e(TAG, Log.getStackTraceString(illegalArgumentException));
		}
		return null;
	}

	public static boolean isOperator(String value) {
		return getOperatorByValue(value) != null;
	}
}